ART: Distinguish Checker lines from comments

In order to prevent tests passing due to lines with hard-to-spot
formatting errors begin ignored, e.g. by forgetting the colon after
"//CHECK", Checker will now require its assertions to start with "///"
or "##", respectivelly for Java and Smali. Such lines will never be
ignored and will fail the test unless successfully parsed.

Change-Id: I0da9a8f13eb96d950af8c85df17d1899a853a299
diff --git a/test/482-checker-loop-back-edge-use/src/Main.java b/test/482-checker-loop-back-edge-use/src/Main.java
index f579692..5754723 100644
--- a/test/482-checker-loop-back-edge-use/src/Main.java
+++ b/test/482-checker-loop-back-edge-use/src/Main.java
@@ -17,17 +17,17 @@
 
 public class Main {
 
-  // CHECK-START: void Main.loop1(boolean) liveness (after)
-  // CHECK:         ParameterValue  liveness:2  ranges:{[2,22)} uses:[17,22]
-  // CHECK:         Goto            liveness:20
+  /// CHECK-START: void Main.loop1(boolean) liveness (after)
+  /// CHECK:         ParameterValue  liveness:2  ranges:{[2,22)} uses:[17,22]
+  /// CHECK:         Goto            liveness:20
   public static void loop1(boolean incoming) {
     while (incoming) {}
   }
 
-  // CHECK-START: void Main.loop2(boolean) liveness (after)
-  // CHECK:         ParameterValue  liveness:4  ranges:{[4,44)} uses:[35,40,44]
-  // CHECK:         Goto            liveness:38
-  // CHECK:         Goto            liveness:42
+  /// CHECK-START: void Main.loop2(boolean) liveness (after)
+  /// CHECK:         ParameterValue  liveness:4  ranges:{[4,44)} uses:[35,40,44]
+  /// CHECK:         Goto            liveness:38
+  /// CHECK:         Goto            liveness:42
   public static void loop2(boolean incoming) {
     while (true) {
       System.out.println("foo");
@@ -35,12 +35,12 @@
     }
   }
 
-  // CHECK-START: void Main.loop3(boolean) liveness (after)
-  // CHECK:         ParameterValue  liveness:4  ranges:{[4,62)} uses:[58,62]
-  // CHECK:         Goto            liveness:60
+  /// CHECK-START: void Main.loop3(boolean) liveness (after)
+  /// CHECK:         ParameterValue  liveness:4  ranges:{[4,62)} uses:[58,62]
+  /// CHECK:         Goto            liveness:60
 
-  // CHECK-START: void Main.loop3(boolean) liveness (after)
-  // CHECK-NOT:     Goto liveness:56
+  /// CHECK-START: void Main.loop3(boolean) liveness (after)
+  /// CHECK-NOT:     Goto liveness:56
   public static void loop3(boolean incoming) {
     // 'incoming' only needs a use at the outer loop's back edge.
     while (System.currentTimeMillis() != 42) {
@@ -49,11 +49,11 @@
     }
   }
 
-  // CHECK-START: void Main.loop4(boolean) liveness (after)
-  // CHECK:         ParameterValue  liveness:4  ranges:{[4,24)} uses:[24]
+  /// CHECK-START: void Main.loop4(boolean) liveness (after)
+  /// CHECK:         ParameterValue  liveness:4  ranges:{[4,24)} uses:[24]
 
-  // CHECK-START: void Main.loop4(boolean) liveness (after)
-  // CHECK-NOT:     Goto            liveness:22
+  /// CHECK-START: void Main.loop4(boolean) liveness (after)
+  /// CHECK-NOT:     Goto            liveness:22
   public static void loop4(boolean incoming) {
     // 'incoming' has no loop use, so should not have back edge uses.
     System.out.println(incoming);
@@ -62,10 +62,10 @@
     }
   }
 
-  // CHECK-START: void Main.loop5(boolean) liveness (after)
-  // CHECK:         ParameterValue  liveness:4  ranges:{[4,52)} uses:[35,44,48,52]
-  // CHECK:         Goto            liveness:46
-  // CHECK:         Goto            liveness:50
+  /// CHECK-START: void Main.loop5(boolean) liveness (after)
+  /// CHECK:         ParameterValue  liveness:4  ranges:{[4,52)} uses:[35,44,48,52]
+  /// CHECK:         Goto            liveness:46
+  /// CHECK:         Goto            liveness:50
   public static void loop5(boolean incoming) {
     // 'incoming' must have a use at both back edges.
     while (Runtime.getRuntime() != null) {
@@ -75,12 +75,12 @@
     }
   }
 
-  // CHECK-START: void Main.loop6(boolean) liveness (after)
-  // CHECK:         ParameterValue  liveness:4  ranges:{[4,48)} uses:[26,48]
-  // CHECK:         Goto            liveness:46
+  /// CHECK-START: void Main.loop6(boolean) liveness (after)
+  /// CHECK:         ParameterValue  liveness:4  ranges:{[4,48)} uses:[26,48]
+  /// CHECK:         Goto            liveness:46
 
-  // CHECK-START: void Main.loop6(boolean) liveness (after)
-  // CHECK-NOT:     Goto            liveness:24
+  /// CHECK-START: void Main.loop6(boolean) liveness (after)
+  /// CHECK-NOT:     Goto            liveness:24
   public static void loop6(boolean incoming) {
     // 'incoming' must have a use only at the first loop's back edge.
     while (true) {
@@ -89,10 +89,10 @@
     }
   }
 
-  // CHECK-START: void Main.loop7(boolean) liveness (after)
-  // CHECK:         ParameterValue  liveness:4  ranges:{[4,52)} uses:[34,43,48,52]
-  // CHECK:         Goto            liveness:46
-  // CHECK:         Goto            liveness:50
+  /// CHECK-START: void Main.loop7(boolean) liveness (after)
+  /// CHECK:         ParameterValue  liveness:4  ranges:{[4,52)} uses:[34,43,48,52]
+  /// CHECK:         Goto            liveness:46
+  /// CHECK:         Goto            liveness:50
   public static void loop7(boolean incoming) {
     // 'incoming' must have a use at both back edges.
     while (Runtime.getRuntime() != null) {
@@ -101,10 +101,10 @@
     }
   }
 
-  // CHECK-START: void Main.loop8() liveness (after)
-  // CHECK:         StaticFieldGet  liveness:14 ranges:{[14,46)} uses:[37,42,46]
-  // CHECK:         Goto            liveness:40
-  // CHECK:         Goto            liveness:44
+  /// CHECK-START: void Main.loop8() liveness (after)
+  /// CHECK:         StaticFieldGet  liveness:14 ranges:{[14,46)} uses:[37,42,46]
+  /// CHECK:         Goto            liveness:40
+  /// CHECK:         Goto            liveness:44
   public static void loop8() {
     // 'incoming' must have a use at both back edges.
     boolean incoming = field;
@@ -113,9 +113,9 @@
     }
   }
 
-  // CHECK-START: void Main.loop9() liveness (after)
-  // CHECK:         StaticFieldGet  liveness:24 ranges:{[24,38)} uses:[33,38]
-  // CHECK:         Goto            liveness:40
+  /// CHECK-START: void Main.loop9() liveness (after)
+  /// CHECK:         StaticFieldGet  liveness:24 ranges:{[24,38)} uses:[33,38]
+  /// CHECK:         Goto            liveness:40
   public static void loop9() {
     while (Runtime.getRuntime() != null) {
       // 'incoming' must only have a use in the inner loop.