* Make compiler happy by adding unreachable variable assignment.

src/jsregexp.cc

Index: src/jsregexp.cc
diff --git a/src/jsregexp.cc b/src/jsregexp.cc
index b4050fabf5a18c1c479f1cd8aeaa058b1d3d0e6f..439a8d1098a5b54b857950b9cbe8ca9cb99a28ac 100644
--- a/src/jsregexp.cc
+++ b/src/jsregexp.cc
@@ -531,6 +531,7 @@ Handle<Object> RegExpImpl::IrregexpExecOnce(Handle<JSRegExp> regexp,
       break;
 #else
       UNIMPLEMENTED();
+      rc = false;
       break;
 #endif
     }
@@ -2725,7 +2726,7 @@ Handle<FixedArray> RegExpEngine::Compile(RegExpParseResult* input,
 
   if (FLAG_irregexp_native) {
 #ifdef ARM
-    UNIMPLEMENTED();
+    // Unimplemented, fall-through to bytecode implementation.
 #else  // IA32
     RegExpMacroAssemblerIA32 macro_assembler(RegExpMacroAssemblerIA32::UC16,
                                              (input->capture_count + 1) * 2);