Fix some inconsistent formatting.

src/variables.h

Index: src/variables.h
diff --git a/src/variables.h b/src/variables.h
index 1b518b7cf1f4d778e514e23315c967f85302fc34..ec76fee4f9cfd465133ea7adb78e8bf287929c00 100644
--- a/src/variables.h
+++ b/src/variables.h
@@ -131,11 +131,11 @@ class Variable: public ZoneObject {
   // in an outer scope about which we don't know anything (it may not
   // be the global scope). scope() is NULL in that case. Currently the
   // scope is only used to follow the context chain length.
-  Scope* scope() const  { return scope_; }
+  Scope* scope() const { return scope_; }
 
-  Handle<String> name() const  { return name_; }
-  Mode mode() const  { return mode_; }
-  bool is_accessed_from_inner_scope() const  {
+  Handle<String> name() const { return name_; }
+  Mode mode() const { return mode_; }
+  bool is_accessed_from_inner_scope() const {
     return is_accessed_from_inner_scope_;
   }
   bool is_used() { return is_used_; }
@@ -172,7 +172,7 @@ class Variable: public ZoneObject {
     local_if_not_shadowed_ = local;
   }
 
-  Expression* rewrite() const  { return rewrite_; }
+  Expression* rewrite() const { return rewrite_; }
 
   StaticType* type() { return &type_; }