Add ForEachOwnPropertyKeyStep

[d01c2]

This PR includes adding ForEachOwnPropertyKeyStep to support these statements in spec:

For each own property key _P_ of _O_ such that _P_ is an array index, in ascending numeric index order, do
For each own property key _P_ of _O_ such that _P_ is a String and _P_ is not an array index, in ascending chronological order of property creation, do
For each own property key _P_ of _O_ such that _P_ is a Symbol, in ascending chronological order of property creation, do
For each own property key _P_ of _A_ such that _P_ is an array index and ! ToUint32(_P_) ≥ _newLen_, in descending numeric index order, do
For each own property key _P_ of _O_ such that _P_ is an array index and ! ToIntegerOrInfinity(_P_) ≥ _len_, in ascending numeric index order, do
For each own property key _P_ of _O_ such that _P_ is a String and _P_ is not an array index, in ascending chronological order of property creation, do
For each own property key _P_ of _O_ such that _P_ is a Symbol, in ascending chronological order of property creation, do
For each own property key _P_ of _O_ such that _P_ is a String and _P_ is not an integer index, in ascending chronological order of property creation, do
For each own property key _P_ of _O_ such that _P_ is a Symbol, in ascending chronological order of property creation, do

[d01c2]

By supporting compiler for ForEachOwnPropertyKeyStep, we can check ESMeta tests all passed including AnalyzeSmallTest, EvalSmallTest. However after conducting tests on test262, it was observed that some tests were failed as following:

- fail (F): 4
+ fail (F): 18
- not-supported (N): 28,479
+ not-supported (N): 28,422

I guess there would be some implementation error in compiler. So I would like to discuss this matter.

[d01c2]

In addition, following is fail.json file I've received:

{
  "[InterpreterError] return not undefined: #2979" : [
    "built-ins/Object/freeze/15.2.3.9-2-a-8.js"
  ],
  "[InterpreterError] return not undefined: #5141" : [
    "built-ins/Object/getOwnPropertyNames/non-object-argument-valid.js"
  ],
  "[InterpreterError] return not undefined: #2401" : [
    "built-ins/Object/create/15.2.3.5-4-7.js"
  ],
  "[InterpreterError] return not undefined: #2428" : [
    "built-ins/Object/defineProperties/15.2.3.7-2-8.js"
  ],
  "[InterpreterError] return not undefined: #2650" : [
    "built-ins/Object/getOwnPropertyNames/15.2.3.4-4-43.js"
  ],
  "[InterpreterError] return not undefined: #2630" : [
    "built-ins/Object/getOwnPropertyNames/15.2.3.4-4-42.js"
  ],
  "[InterpreterError] return not undefined: #2363" : [
    "built-ins/Object/create/15.2.3.5-4-30.js"
  ],
  "[InterpreterError] return not undefined: #3263" : [
    "built-ins/Object/getOwnPropertyNames/15.2.3.4-4-44.js"
  ],
  "[InterpreterError] return not undefined: #2399" : [
    "built-ins/Object/defineProperties/15.2.3.7-5-a-9.js"
  ],
  "[InterpreterError] return not undefined: #2990" : [
    "built-ins/Object/getOwnPropertyDescriptors/tamper-with-global-object.js"
  ],
  "Java heap space" : [
    "language/expressions/tagged-template/tco-call.js",
    "language/expressions/tagged-template/tco-member.js"
  ],
  "[InterpreterError] return not undefined: #4193" : [
    "built-ins/Reflect/ownKeys/order-after-define-property.js"
  ],
  "[InterpreterError] return not undefined: #2641" : [
    "built-ins/Object/isFrozen/15.2.3.12-2-a-12.js"
  ],
  "[InterpreterError] return not undefined: #2881" : [
    "built-ins/Object/defineProperties/15.2.3.7-5-b-241.js"
  ],
  "[InterpreterError] return not undefined: #2811" : [
    "built-ins/Object/getOwnPropertyDescriptors/primitive-strings.js"
  ],
  "[InterpreterError] return not undefined: #2217" : [
    "language/types/number/S8.5_A13_T2.js"
  ],
  "[InterpreterError] return not undefined: #3056" : [
    "built-ins/Object/seal/object-seal-p-is-own-property-of-a-string-object-which-implements-its-own-get-own-property.js"
  ]
}

I guess "Java heap space" is occurred due to testing environment, so we have to fix others.

[jhnaldo]

LGTM! 👍🏻