Return the correct statement position.

Whether this was a typo or a deliberate decision at some point I don't know. Anyway it was wrong.

TBR=erik.corry@gmail.com
Review URL: http://codereview.chromium.org/1752001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4452 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/assembler-arm.h

@@ -944,7 +944,7 @@ class Assembler : public Malloced {
 
   int pc_offset() const { return pc_ - buffer_; }
   int current_position() const { return current_position_; }
-  int current_statement_position() const { return current_position_; }
+  int current_statement_position() const { return current_statement_position_; }
 
  protected:
   int buffer_space() const { return reloc_info_writer.pos() - pc_; }

src/arm/assembler-thumb2.h

@@ -898,7 +898,7 @@ class Assembler : public Malloced {
 
   int pc_offset() const { return pc_ - buffer_; }
   int current_position() const { return current_position_; }
-  int current_statement_position() const { return current_position_; }
+  int current_statement_position() const { return current_statement_position_; }
 
  protected:
   int buffer_space() const { return reloc_info_writer.pos() - pc_; }

src/mips/assembler-mips.h

@@ -522,7 +522,9 @@ class Assembler : public Malloced {
 
   int32_t pc_offset() const { return pc_ - buffer_; }
   int32_t current_position() const { return current_position_; }
-  int32_t current_statement_position() const { return current_position_; }
+  int32_t current_statement_position() const {
+    return current_statement_position_;
+  }
 
   // Check if there is less than kGap bytes available in the buffer.
   // If this is the case, we need to grow the buffer before emitting