* Rename to Irregexp throughout....

src/SConscript

Index: src/SConscript
===================================================================
--- src/SConscript	(revision 825)
+++ src/SConscript	(working copy)
@@ -36,15 +36,15 @@
 SOURCES = {
   'all': [
     'accessors.cc', 'allocation.cc', 'api.cc', 'assembler.cc',
-    'assembler-re2k.cc', 'ast.cc', 'bootstrapper.cc', 'builtins.cc',
+    'assembler-irregexp.cc', 'ast.cc', 'bootstrapper.cc', 'builtins.cc',
     'checks.cc', 'code-stubs.cc', 'codegen.cc', 'compilation-cache.cc',
     'compiler.cc', 'contexts.cc', 'conversions.cc', 'counters.cc',
     'dateparser.cc', 'debug.cc', 'disassembler.cc', 'execution.cc',
     'factory.cc', 'flags.cc', 'frames.cc', 'global-handles.cc',
-    'handles.cc', 'hashmap.cc', 'heap.cc', 'ic.cc', 'interpreter-re2k.cc',
+    'handles.cc', 'hashmap.cc', 'heap.cc', 'ic.cc', 'interpreter-irregexp.cc',
     'jsregexp.cc', 'log.cc', 'mark-compact.cc', 'messages.cc',
     'objects.cc', 'parser.cc', 'property.cc', 'regexp-macro-assembler.cc',
-    'regexp-macro-assembler-re2k.cc', 'rewriter.cc', 'runtime.cc', 'scanner.cc',
+    'regexp-macro-assembler-irregexp.cc', 'rewriter.cc', 'runtime.cc', 'scanner.cc',
     'scopeinfo.cc', 'scopes.cc', 'serialize.cc', 'snapshot-common.cc', 
     'spaces.cc', 'string-stream.cc', 'stub-cache.cc', 'token.cc', 'top.cc',
     'unicode.cc', 'usage-analyzer.cc', 'utils.cc', 'v8-counters.cc',