RFR: 8286058: AArch64: clarify uses of MacroAssembler::trampoline_call [v2]

[Evgeny Astigeevich]

> `MacroAssembler::trampoline_call` is for generating calls of targets which are inside CodeCache and can have relocInfo types: `runtime_call_type`, `opt_virtual_call_type`, `static_call_type` or `virtual_call_type`.
> This PR updates the description of the function and adds additional asserts.
> Tested a fastdebug build:
> - `gtest`: Passed
> - `tier1`: Passed

Evgeny Astigeevich has updated the pull request incrementally with one additional commit since the last revision:

  Fix assert message

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8564/files
  - new: https://git.openjdk.java.net/jdk/pull/8564/files/da867184..d3050fba

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8564&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8564&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8564.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8564/head:pull/8564

PR: https://git.openjdk.java.net/jdk/pull/8564