compiler: remove parentHandle from calling convention

This removes the parentHandle argument from the internal calling convention.
It was formerly used to implment coroutines.
Now that coroutines have been removed, it is no longer necessary.

builder/build.go

@@ -428,7 +428,6 @@ func Build(pkgName, outpath string, config *compileopts.Config, action func(Buil
 			llvmInitFn.SetUnnamedAddr(true)
 			transform.AddStandardAttributes(llvmInitFn, config)
 			llvmInitFn.Param(0).SetName("context")
-			llvmInitFn.Param(1).SetName("parentHandle")
 			block := mod.Context().AddBasicBlock(llvmInitFn, "entry")
 			irbuilder := mod.Context().NewBuilder()
 			defer irbuilder.Dispose()
@@ -439,7 +438,7 @@ func Build(pkgName, outpath string, config *compileopts.Config, action func(Buil
 				if pkgInit.IsNil() {
 					panic("init not found for " + pkg.Pkg.Path())
 				}
-				irbuilder.CreateCall(pkgInit, []llvm.Value{llvm.Undef(i8ptrType), llvm.Undef(i8ptrType)}, "")
+				irbuilder.CreateCall(pkgInit, []llvm.Value{llvm.Undef(i8ptrType)}, "")
 			}
 			irbuilder.CreateRetVoid()