[NTI] Teach TypeICompilerTestCase to run testExternChanges in both OT…

…I and NTI.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=168072759

[maven-release-plugin] copy for tag closure-compiler-parent-v20170910

[maven-release-plugin] copy for tag closure-compiler-parent-v20170806

Have SmartNamePass compatible with ES6 features.

It removes classes, generators, and simple destructuring cases.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=164333612

[maven-release-plugin] copy for tag closure-compiler-parent-v20170626

Convert DeadAssignmentsElimination pass to use the ES6 Syntactic Scop…

…e Creator.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160222117

Rollback

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=156746868

[maven-release-plugin] copy for tag closure-compiler-parent-v20170521

Convert a non-stylistic string concatenation to use LINE_JOINER.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=153901347

[maven-release-plugin] copy for tag closure-compiler-parent-v20170423