RFR: Remove space after asserts

[Stefan Karlsson]

Simple textual replacement of `assert (` with `assert(`. I've only changed asserts introduced/changed for Loom.

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Commit messages:
 - Remove space after asserts

Changes: https://git.openjdk.java.net/loom/pull/107/files
 Webrev: https://webrevs.openjdk.java.net/?repo=loom&pr=107&range=00
  Stats: 451 lines in 43 files changed: 0 ins; 0 del; 451 mod
  Patch: https://git.openjdk.java.net/loom/pull/107.diff
  Fetch: git fetch https://git.openjdk.java.net/loom pull/107/head:pull/107

PR: https://git.openjdk.java.net/loom/pull/107