Fix ASTNull

[davispuh]

15b6ac7 addded

Parser!ASTNull(null, null, false)

which crashes

object.Error@(0): Access Violation
----------------
0x005E0673 in ddmd.lexer.Lexer ddmd.lexer.Lexer.__ctor(const(char)*, const(char)*, uint, uint, bool,bool) at dmd\src\ddmd\lexer.d(189)
0x004E6ADF in ddmd.parse.Parser!(ddmd.astnull.ASTNull).Parser ddmd.parse.Parser(ddmd.astnull.ASTNull).Parser.__ctor(ddmd.astnull.ASTNull.Module, const(char)[], bool) at dmd\src\ddmd\parse.d(275)
0x004D4A07 in void ddmd.parse.__unittestL8426_10() at dmd\src\ddmd\parse.d(8429)
0x004F84AC in void ddmd.parse.__modtest()
0x005F105D in scope int core.runtime.runModuleUnitTests().__foreachbody1(scopeobject.ModuleInfo*)
0x005EE80B in scope int object.ModuleInfo.opApply(scope intdelegate(object.ModuleInfo*)).__lambda2(immutable(object.ModuleInfo*))

[UplinkCoder]

@davispuh change commit message please.

[UplinkCoder]

@MartinNowak can you fix the commit message by doing a rebase -i into check for source !is null berfore parsing ?

[jacob-carlborg]

Just as 15b6ac7, this was merged a bit too soon. Unit tests, that is unittest blocks inside the DMD source code, are not run as part of the regular test suite.

@MartinNowak @davispuh @RazvanN7

[wilzbach]

Unit tests, that is unittest blocks inside the DMD source code, are not run as part of the regular test suite.

-> #6767

[jacob-carlborg]

-> #6767

That's great 👍.