fix: Handle raw output format in dogfood convert tool

The _extract_program_output function was expecting output files to
contain the "=== Running Program ===" marker, but newer dogfood output
files store raw program output without this marker. This caused empty
.expected files to be generated, breaking the integration tests.

The fix handles both formats: if the marker is present, extract content
after it; otherwise use the raw content as-is.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: antonsynd

build_tools/sharpy_dogfood/convert.py

@@ -15,11 +15,13 @@
 def _extract_program_output(actual_output: str) -> str:
     """Extract just the program output from actual_output.txt.
 
-    The actual_output.txt contains lines like:
+    The actual_output.txt may contain lines like:
         Successfully compiled to: /path/to/exe
         === Running Program ===
         <actual program output here>
 
+    Or it may just contain the raw program output (newer format).
+
     This function extracts only the program output portion.
     Note: The dogfood tool strips trailing whitespace from output, but
     Console.WriteLine actually produces a trailing newline, so we add it back.
@@ -35,11 +37,16 @@ def _extract_program_output(actual_output: str) -> str:
         if in_output:
             output_lines.append(line)
 
-    # Join and preserve the trailing newline if present
-    result = "\n".join(output_lines)
-    # Remove leading empty line if present (from the blank line after "=== Running Program ===")
-    if result.startswith("\n"):
-        result = result[1:]
+    # If we found the marker, use the extracted lines
+    if in_output:
+        result = "\n".join(output_lines)
+        # Remove leading empty line if present (from the blank line after "=== Running Program ===")
+        if result.startswith("\n"):
+            result = result[1:]
+    else:
+        # No marker found - the file contains raw output (newer format)
+        result = actual_output
+
     # Add trailing newline since print() adds one but dogfood strips it
     if result and not result.endswith("\n"):
         result += "\n"

src/Sharpy.Compiler.Tests/Integration/TestFixtures/basics/bool_variables_0003.expected

@@ -0,0 +1,7 @@
+True
+False
+True
+False
+True
+True
+True

src/Sharpy.Compiler.Tests/Integration/TestFixtures/functions/function_calling_function_0002.expected

@@ -0,0 +1 @@
+31

src/Sharpy.Compiler.Tests/Integration/TestFixtures/inheritance/super_init_call_0000.expected

@@ -0,0 +1,5 @@
+2024
+4
+150
+85
+100

src/Sharpy.Compiler.Tests/Integration/TestFixtures/structs_enums/struct_definition_0001.expected

@@ -0,0 +1,6 @@
+40
+26
+True
+False
+8
+48