fix compiler crash when file on command line doesn't exist

compiler/src/prog8/compiler/Compiler.kt

@@ -131,6 +131,10 @@ fun compileProgram(filepath: Path,
         System.err.print("\u001b[91m")  // bright red
         System.err.println(pfx.message)
         System.err.print("\u001b[0m")  // reset
+    } catch (nsf: NoSuchFileException) {
+        System.err.print("\u001b[91m")  // bright red
+        System.err.println("File not found: ${nsf.message}")
+        System.err.print("\u001b[0m")  // reset
     } catch (ax: AstException) {
         System.err.print("\u001b[91m")  // bright red
         System.err.println(ax.toString())

docs/source/todo.rst

@@ -3,7 +3,7 @@ TODO
 
 For next compiler release (7.2)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-...
+- fix the asm-labels problem (github issue #62)
 
 
 Blocked by Commander-x16 v39 release
@@ -19,7 +19,6 @@ Future
 - replace certain uses of inferredType.getOr(DataType.UNDEFINED) by i.getOrElse({ errorhandler })
 - see if we can remove more "[InferredType].getOr(DataType.UNDEFINED)"
 - use more of Result<> and Either<> to handle errors/ nulls better
-- fix the asm-labels problem (github issue #62)
 - can we get rid of pieces of asmgen.AssignmentAsmGen by just reusing the AugmentableAssignment ? generated code should not suffer
 - c64: make the graphics.BITMAP_ADDRESS configurable (VIC banking)
 - optimize several inner loops in gfx2 even further?