[Interpreter] Remove constant pool type in tests

test/cctest/interpreter/bytecode_expectations/DeclareGlobals.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
-pool type: mixed
 execute: no
 wrap: no
 top level: yes
 
 ---
 snippet: "
   var a = 1;
 "
 frame size: 4
 parameter count: 1
@@ skipping 10 matching lines @@
                 B(Star), R(1),
                 B(LdaZero),
                 B(Star), R(2),
                 B(LdaSmi), U8(1),
                 B(Star), R(3),
                 B(CallRuntime), U16(Runtime::kInitializeVarGlobal), R(1), U8(3),
                 B(LdaUndefined),
   /*   10 S> */ B(Return),
 ]
 constant pool: [
-  InstanceType::FIXED_ARRAY_TYPE,
-  InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+  FIXED_ARRAY_TYPE,
+  ONE_BYTE_INTERNALIZED_STRING_TYPE ["a"],
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   function f() {}
 "
 frame size: 3
 parameter count: 1
 bytecode array length: 18
 bytecodes: [
                 B(LdaConstant), U8(0),
                 B(Star), R(0),
                 B(LdaZero),
                 B(Star), R(1),
                 B(Mov), R(closure), R(2),
                 B(CallRuntime), U16(Runtime::kDeclareGlobalsForInterpreter), R(0), U8(3),
   /*    0 E> */ B(StackCheck),
                 B(LdaUndefined),
   /*   15 S> */ B(Return),
 ]
 constant pool: [
-  InstanceType::FIXED_ARRAY_TYPE,
+  FIXED_ARRAY_TYPE,
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var a = 1;
   a=2;
 "
 frame size: 4
@@ skipping 13 matching lines @@
                 B(Star), R(2),
                 B(LdaSmi), U8(1),
                 B(Star), R(3),
                 B(CallRuntime), U16(Runtime::kInitializeVarGlobal), R(1), U8(3),
   /*   11 S> */ B(LdaSmi), U8(2),
   /*   12 E> */ B(StaGlobalSloppy), U8(1), U8(3),
                 B(Star), R(0),
   /*   15 S> */ B(Return),
 ]
 constant pool: [
-  InstanceType::FIXED_ARRAY_TYPE,
-  InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+  FIXED_ARRAY_TYPE,
+  ONE_BYTE_INTERNALIZED_STRING_TYPE ["a"],
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   function f() {}
   f();
 "
 frame size: 4
 parameter count: 1
 bytecode array length: 29
 bytecodes: [
                 B(LdaConstant), U8(0),
                 B(Star), R(1),
                 B(LdaZero),
                 B(Star), R(2),
                 B(Mov), R(closure), R(3),
                 B(CallRuntime), U16(Runtime::kDeclareGlobalsForInterpreter), R(1), U8(3),
   /*    0 E> */ B(StackCheck),
   /*   16 S> */ B(LdrUndefined), R(2),
                 B(LdrGlobal), U8(1), R(1),
   /*   16 E> */ B(Call), R(1), R(2), U8(1), U8(3),
                 B(Star), R(0),
   /*   20 S> */ B(Return),
 ]
 constant pool: [
-  InstanceType::FIXED_ARRAY_TYPE,
+  FIXED_ARRAY_TYPE,
 ]
 handlers: [
 ]