[Interpreter] Remove constant pool type in tests

test/cctest/interpreter/bytecode_expectations/PropertyLoads.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
-pool type: string
 execute: yes
 wrap: no
 test function name: f
 
 ---
 snippet: "
   function f(a) { return a.name; }
   f({name : \"test\"});
 "
 frame size: 0
 parameter count: 2
 bytecode array length: 7
 bytecodes: [
   /*   10 E> */ B(StackCheck),
   /*   16 S> */ B(Nop),
   /*   24 E> */ B(LdaNamedProperty), R(arg0), U8(0), U8(1),
   /*   31 S> */ B(Return),
 ]
 constant pool: [
-  "name",
+  ONE_BYTE_INTERNALIZED_STRING_TYPE ["name"],
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   function f(a) { return a[\"key\"]; }
   f({key : \"test\"});
 "
 frame size: 0
 parameter count: 2
 bytecode array length: 7
 bytecodes: [
   /*   10 E> */ B(StackCheck),
   /*   16 S> */ B(Nop),
   /*   24 E> */ B(LdaNamedProperty), R(arg0), U8(0), U8(1),
   /*   33 S> */ B(Return),
 ]
 constant pool: [
-  "key",
+  ONE_BYTE_INTERNALIZED_STRING_TYPE ["key"],
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   function f(a) { return a[100]; }
   f({100 : \"test\"});
 "
 frame size: 0
@@ skipping 40 matching lines @@
 bytecodes: [
   /*   10 E> */ B(StackCheck),
   /*   25 S> */ B(Nop),
   /*   25 E> */ B(LdrNamedProperty), R(arg0), U8(0), U8(1), R(0),
                 B(Ldar), R(0),
   /*   32 S> */ B(LdaSmi), U8(-124),
   /*   40 E> */ B(LdaKeyedProperty), R(arg0), U8(3),
   /*   48 S> */ B(Return),
 ]
 constant pool: [
-  "name",
+  ONE_BYTE_INTERNALIZED_STRING_TYPE ["name"],
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   function f(a) {
     var b;
     b = a.name;
     b = a.name;
@@ skipping 514 matching lines @@
   /* 1796 E> */ B(LdrNamedProperty), R(arg0), U8(0), U8(253), R(0),
                 B(Ldar), R(0),
   /* 1805 S> */ B(Nop),
   /* 1810 E> */ B(LdrNamedProperty), R(arg0), U8(0), U8(255), R(0),
                 B(Ldar), R(0),
   /* 1819 S> */ B(Nop),
   /* 1827 E> */ B(Wide), B(LdaNamedProperty), R16(arg0), U16(0), U16(257),
   /* 1834 S> */ B(Return),
 ]
 constant pool: [
-  "name",
+  ONE_BYTE_INTERNALIZED_STRING_TYPE ["name"],
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   function f(a, b) {
     var c;
     c = a[b];
     c = a[b];
@@ skipping 518 matching lines @@
                 B(Ldar), R(0),
   /* 1566 S> */ B(Ldar), R(arg1),
   /* 1575 E> */ B(Wide), B(LdaKeyedProperty), R16(arg0), U16(257),
   /* 1579 S> */ B(Return),
 ]
 constant pool: [
 ]
 handlers: [
 ]