Move cip from sp_context_t to PluginContext.

sourcepawn/jit/x86/jit_x86.cpp

@@ -303,6 +303,7 @@ CompileFromThunk(PluginRuntime *runtime, cell_t pcode_offs, void **addrp, char *
 Compiler::Compiler(PluginRuntime *rt, cell_t pcode_offs)
   : env_(Environment::get()),
     rt_(rt),
+    context_(rt->GetBaseContext()),
     plugin_(rt->plugin()),
     error_(SP_ERROR_NONE),
     pcode_start_(pcode_offs),

sourcepawn/jit/x86/jit_x86.h

@@ -91,8 +91,7 @@ class Compiler
   void emitFloatCmp(ConditionCode cc);
 
   ExternalAddress cipAddr() {
-    sp_context_t *ctx = rt_->GetBaseContext()->GetCtx();
-    return ExternalAddress(&ctx->cip);
+    return ExternalAddress(context_->addressOfCip());
   }
   ExternalAddress hpAddr() {
     sp_context_t *ctx = rt_->GetBaseContext()->GetCtx();
@@ -107,6 +106,7 @@ class Compiler
   AssemblerX86 masm;
   sp::Environment *env_;
   PluginRuntime *rt_;
+  PluginContext *context_;
   const sp_plugin_t *plugin_;
   int error_;
   uint32_t pcode_start_;