Rename LookupSymbol calls to use Utf8 or OneByte in names.

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 068c44e713f5569515606e2b582caee994ea17f1..6d06f687b677dc491bdc391cd1cb42e33daef2bd 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -1066,14 +1066,14 @@ class Heap {
   // Returns Failure::RetryAfterGC(requested_bytes, space) if allocation
   // failed.
   // Please note this function does not perform a garbage collection.
-  MUST_USE_RESULT MaybeObject* LookupSymbol(Vector<const char> str);
-  MUST_USE_RESULT MaybeObject* LookupAsciiSymbol(Vector<const char> str);
-  MUST_USE_RESULT MaybeObject* LookupTwoByteSymbol(Vector<const uc16> str);
-  MUST_USE_RESULT MaybeObject* LookupAsciiSymbol(const char* str) {
-    return LookupSymbol(CStrVector(str));
+  MUST_USE_RESULT MaybeObject* LookupUtf8Symbol(Vector<const char> str);
+  MUST_USE_RESULT MaybeObject* LookupUtf8Symbol(const char* str) {
+    return LookupUtf8Symbol(CStrVector(str));
   }
+  MUST_USE_RESULT MaybeObject* LookupOneByteSymbol(Vector<const char> str);
+  MUST_USE_RESULT MaybeObject* LookupTwoByteSymbol(Vector<const uc16> str);
   MUST_USE_RESULT MaybeObject* LookupSymbol(String* str);
-  MUST_USE_RESULT MaybeObject* LookupAsciiSymbol(
+  MUST_USE_RESULT MaybeObject* LookupOneByteSymbol(
       Handle<SeqOneByteString> string, int from, int length);
 
   bool LookupSymbolIfExists(String* str, String** symbol);