[Interpreter] Move context chain search loop to handler

test/cctest/interpreter/bytecode_expectations/ConstVariableContextSlot.golden

Index: test/cctest/interpreter/bytecode_expectations/ConstVariableContextSlot.golden
diff --git a/test/cctest/interpreter/bytecode_expectations/ConstVariableContextSlot.golden b/test/cctest/interpreter/bytecode_expectations/ConstVariableContextSlot.golden
index e40630b5319e47a60e33683bf3a0349ac435d2f6..9018de2f04d71c11b3577c07c553e3bdc0671f77 100644
--- a/test/cctest/interpreter/bytecode_expectations/ConstVariableContextSlot.golden
+++ b/test/cctest/interpreter/bytecode_expectations/ConstVariableContextSlot.golden
@@ -12,17 +12,17 @@ snippet: "
 "
 frame size: 2
 parameter count: 1
-bytecode array length: 21
+bytecode array length: 23
 bytecodes: [
                 B(CreateFunctionContext), U8(1),
                 B(PushContext), R(1),
                 B(LdaTheHole),
-                B(StaContextSlot), R(context), U8(4),
+                B(StaContextSlot), R(context), U8(4), U8(0),
                 B(CreateClosure), U8(0), U8(2),
                 B(Star), R(0),
   /*   30 E> */ B(StackCheck),
   /*   44 S> */ B(LdaSmi), U8(10),
-  /*   44 E> */ B(StaContextSlot), R(context), U8(4),
+  /*   44 E> */ B(StaContextSlot), R(context), U8(4), U8(0),
                 B(LdaUndefined),
   /*   74 S> */ B(Return),
 ]
@@ -38,18 +38,18 @@ snippet: "
 "
 frame size: 3
 parameter count: 1
-bytecode array length: 34
+bytecode array length: 37
 bytecodes: [
                 B(CreateFunctionContext), U8(1),
                 B(PushContext), R(1),
                 B(LdaTheHole),
-                B(StaContextSlot), R(context), U8(4),
+                B(StaContextSlot), R(context), U8(4), U8(0),
                 B(CreateClosure), U8(0), U8(2),
                 B(Star), R(0),
   /*   30 E> */ B(StackCheck),
   /*   44 S> */ B(LdaSmi), U8(10),
-  /*   44 E> */ B(StaContextSlot), R(context), U8(4),
-  /*   74 S> */ B(LdaContextSlot), R(context), U8(4),
+  /*   44 E> */ B(StaContextSlot), R(context), U8(4), U8(0),
+  /*   74 S> */ B(LdaContextSlot), R(context), U8(4), U8(0),
                 B(JumpIfNotHole), U8(11),
                 B(LdaConstant), U8(1),
                 B(Star), R(2),
@@ -69,24 +69,24 @@ snippet: "
 "
 frame size: 4
 parameter count: 1
-bytecode array length: 42
+bytecode array length: 45
 bytecodes: [
                 B(CreateFunctionContext), U8(1),
                 B(PushContext), R(1),
                 B(LdaTheHole),
-                B(StaContextSlot), R(context), U8(4),
+                B(StaContextSlot), R(context), U8(4), U8(0),
                 B(CreateClosure), U8(0), U8(2),
                 B(Star), R(0),
   /*   30 E> */ B(StackCheck),
   /*   47 S> */ B(LdaSmi), U8(20),
                 B(Star), R(2),
-  /*   47 E> */ B(LdaContextSlot), R(context), U8(4),
+  /*   47 E> */ B(LdaContextSlot), R(context), U8(4), U8(0),
                 B(JumpIfNotHole), U8(11),
                 B(LdaConstant), U8(1),
                 B(Star), R(3),
                 B(CallRuntime), U16(Runtime::kThrowReferenceError), R(3), U8(1),
                 B(CallRuntime), U16(Runtime::kThrowConstAssignError), R(0), U8(0),
-  /*   47 E> */ B(StaContextSlot), R(context), U8(4),
+  /*   47 E> */ B(StaContextSlot), R(context), U8(4), U8(0),
                 B(LdaUndefined),
   /*   80 S> */ B(Return),
 ]
@@ -103,20 +103,20 @@ snippet: "
 "
 frame size: 4
 parameter count: 1
-bytecode array length: 44
+bytecode array length: 47
 bytecodes: [
                 B(CreateFunctionContext), U8(1),
                 B(PushContext), R(1),
                 B(LdaTheHole),
-                B(StaContextSlot), R(context), U8(4),
+                B(StaContextSlot), R(context), U8(4), U8(0),
                 B(CreateClosure), U8(0), U8(2),
                 B(Star), R(0),
   /*   30 E> */ B(StackCheck),
   /*   44 S> */ B(LdaSmi), U8(10),
-  /*   44 E> */ B(StaContextSlot), R(context), U8(4),
+  /*   44 E> */ B(StaContextSlot), R(context), U8(4), U8(0),
   /*   48 S> */ B(LdaSmi), U8(20),
                 B(Star), R(2),
-  /*   50 E> */ B(LdaContextSlot), R(context), U8(4),
+  /*   50 E> */ B(LdaContextSlot), R(context), U8(4), U8(0),
                 B(JumpIfNotHole), U8(11),
                 B(LdaConstant), U8(1),
                 B(Star), R(3),