Make some free functions into static members of class Parser.

src/jsregexp.cc

Index: src/jsregexp.cc
diff --git a/src/jsregexp.cc b/src/jsregexp.cc
index 30d4dcbf23b43a8a3ab360f03a767556a59e0319..82a370f141fecf845cb4bd08ec3fdd390cc1f519 100644
--- a/src/jsregexp.cc
+++ b/src/jsregexp.cc
@@ -125,7 +125,7 @@ Handle<Object> RegExpImpl::Compile(Handle<JSRegExp> re,
   PostponeInterruptsScope postpone;
   RegExpCompileData parse_result;
   FlatStringReader reader(pattern);
-  if (!ParseRegExp(&reader, flags.is_multiline(), &parse_result)) {
+  if (!Parser::ParseRegExp(&reader, flags.is_multiline(), &parse_result)) {
     // Throw an exception if we fail to parse the pattern.
     ThrowRegExpException(re,
                          pattern,
@@ -267,7 +267,7 @@ bool RegExpImpl::CompileIrregexp(Handle<JSRegExp> re, bool is_ascii) {
 
   RegExpCompileData compile_data;
   FlatStringReader reader(pattern);
-  if (!ParseRegExp(&reader, flags.is_multiline(), &compile_data)) {
+  if (!Parser::ParseRegExp(&reader, flags.is_multiline(), &compile_data)) {
     // Throw an exception if we fail to parse the pattern.
     // THIS SHOULD NOT HAPPEN. We already pre-parsed it successfully once.
     ThrowRegExpException(re,