Move functions from handles.cc to where they belong.

src/gdb-jit.cc

Index: src/gdb-jit.cc
diff --git a/src/gdb-jit.cc b/src/gdb-jit.cc
index 1af2784573de6c947298af7f7733362c32dea5b9..ca08f3e17e8583df6d31e18cbe3bbdc1d6dae58f 100644
--- a/src/gdb-jit.cc
+++ b/src/gdb-jit.cc
@@ -1002,7 +1002,7 @@ class CodeDescription BASE_EMBEDDED {
   }
 
   int GetScriptLineNumber(int pos) {
-    return GetScriptLineNumberSafe(script_, pos) + 1;
+    return script_->GetLineNumber(pos) + 1;
   }
 
 
@@ -2003,8 +2003,7 @@ void GDBJITInterface::AddCode(Handle<Name> name,
                               CompilationInfo* info) {
   if (!FLAG_gdbjit) return;
 
-  // Force initialization of line_ends array.
-  GetScriptLineNumber(script, 0);
+  Script::InitLineEnds(script);
 
   if (!name.is_null() && name->IsString()) {
     SmartArrayPointer<char> name_cstring =