Fixed signal 11 bug by not testing resolved method first.

Test: test-art-host
Bug: 33656359

Change-Id: Idb1afccf811a2fbf7500fc1d953e118981ad36d4
diff --git a/test/624-checker-stringops/src/Main.java b/test/624-checker-stringops/src/Main.java
index d965e3f..75b782e 100644
--- a/test/624-checker-stringops/src/Main.java
+++ b/test/624-checker-stringops/src/Main.java
@@ -258,6 +258,20 @@
     return b.length();
   }
 
+  // Regression b/33656359: StringBuffer x is passed to constructor of String
+  // (this caused old code to crash due to missing nullptr check).
+  //
+  /// CHECK-START: void Main.doesNothing() instruction_simplifier (before)
+  /// CHECK-DAG: InvokeVirtual intrinsic:StringBufferToString
+  //
+  /// CHECK-START: void Main.doesNothing() instruction_simplifier (after)
+  /// CHECK-DAG: InvokeVirtual intrinsic:StringBufferToString
+  static void doesNothing() {
+    StringBuffer x = new StringBuffer();
+    String y = new String(x);
+    x.toString();
+  }
+
   public static void main(String[] args) {
     expectEquals(1865, liveIndexOf());
     expectEquals(29, deadIndexOf());
@@ -281,6 +295,8 @@
     expectEquals(0, bufferDeadLoop());
     expectEquals(0, builderDeadLoop());
 
+    doesNothing();
+
     System.out.println("passed");
   }