fix Issue 13503 - Bad code with -inline, varargs and auto return
more ErrorStatement recovery
fix Issue 13465 - Segfault by eager semantic2 running in template instantiation
deprecate NCEG operator usage
Merge pull request #4027 from WalterBright/nceg-deprecate

deprecate NCEG operator usage
Merge pull request #4024 from 9rnsr/fix13465

Issue 13465 - Segfault by eager semantic2 running in template instantiation
Merge pull request #4014 from 9rnsr/fix13503

[REG2.065] Issue 13503 - Bad code with -inline, varargs and auto return
Merge pull request #4017 from WalterBright/error-statement

more ErrorStatement recovery
fix Issue 13550 - Inner functions take outer function attributes erroneously
Merge pull request #4031 from 9rnsr/fix13550

[REG2.067a] Issue 13550 - Inner functions take outer function attributes erroneously
[Refactoring] Remove goto jumps
fix Issue 11888 - Incorrect behaviour taking slice from return value
Add el_evalonce and use it to cut off redundant IRs