Fix inlining for String.indexOf / String.isEmpty.

Before vs After:

Equals  URI 1544014.6 ==============================
Equals  URI  992997.6 ========================

bug: 11551453

Change-Id: I41045fda59b4c69a209d6b895dc7c2bdd1fc4e89
diff --git a/compiler/dex/quick/dex_file_method_inliner.cc b/compiler/dex/quick/dex_file_method_inliner.cc
index 4d3e3da..6a760fa 100644
--- a/compiler/dex/quick/dex_file_method_inliner.cc
+++ b/compiler/dex/quick/dex_file_method_inliner.cc
@@ -58,8 +58,8 @@
     "sqrt",                  // kNameCacheSqrt
     "charAt",                // kNameCacheCharAt
     "compareTo",             // kNameCacheCompareTo
-    "is_empty",              // kNameCacheIsEmpty
-    "index_of",              // kNameCacheIndexOf
+    "isEmpty",               // kNameCacheIsEmpty
+    "indexOf",               // kNameCacheIndexOf
     "length",                // kNameCacheLength
     "currentThread",         // kNameCacheCurrentThread
     "peekByte",              // kNameCachePeekByte