CMake Nightly Date Stamp
Genex: Fix segfault when parsing ends with parameter expectation.

The extendResult method expects a non-empty parameters vector, as
assured by the normal case. Avoid calling the method when the parser
finds an incomplete generator expression, but has already entered
the state of expecting to find parameters.
Merge topic 'fix-genex-segfault' into next

36eef30 Genex: Fix segfault when parsing ends with parameter expectation.
4bc8b7a CMake Nightly Date Stamp