built-ins/Reflect/*: make all indentation consistent (depth & character) (#1429)

test/built-ins/Reflect/apply/call-target.js

test/built-ins/Reflect/apply/return-target-call-result.js

...t-ins/Reflect/construct/return-with-newtarget-argument.js

...ns/Reflect/construct/return-without-newtarget-argument.js

test/built-ins/Reflect/defineProperty/return-boolean.js

test/built-ins/Reflect/get/return-value.js

...tOwnPropertyDescriptor/return-from-accessor-descriptor.js

...t/getOwnPropertyDescriptor/return-from-data-descriptor.js

...t-ins/Reflect/getOwnPropertyDescriptor/symbol-property.js

...eflect/getOwnPropertyDescriptor/undefined-own-property.js

test/built-ins/Reflect/getPrototypeOf/skip-own-properties.js

test/built-ins/Reflect/has/return-boolean.js

test/built-ins/Reflect/ownKeys/return-empty-array.js

test/built-ins/Reflect/ownKeys/return-non-enumerable-keys.js

test/built-ins/Reflect/set/creates-a-data-descriptor.js

test/built-ins/Reflect/set/different-property-descriptors.js

test/built-ins/Reflect/set/receiver-is-not-object.js

...built-ins/Reflect/set/set-value-on-accessor-descriptor.js

test/built-ins/Reflect/set/set-value-on-data-descriptor.js