Add comments for excluded example projects and re-store function signature code style

Also ensure the verbose option uses -vv as is in the master branch

Author: hugueskamba

tools/test/examples/examples_lib.py

@@ -359,15 +359,7 @@ def status(message):
     return results
 
 
-def compile_repos(
-    config,
-    toolchains,
-    targets,
-    profiles,
-    verbose,
-    examples,
-    post_checks,
-):
+def compile_repos(config, toolchains, targets, profiles, verbose, examples, post_checks):
     """Compiles combinations of example programs, targets and compile chains.
 
        The results are returned in a [key: value] dictionary format:
@@ -417,7 +409,7 @@ def compile_repos(
                                                                 valid_choices(example['toolchains'], toolchains),
                                                                 example['features']):
 
-                    build_command = ["mbed-cli", "compile", "-t", toolchain, "-m", target] + (['-v'] if verbose else [])
+                    build_command = ["mbed-cli", "compile", "-t", toolchain, "-m", target] + (['-vv'] if verbose else [])
                     if profiles:
                         for profile in profiles:
                             build_command.extend(["--profile", profile])
@@ -605,10 +597,10 @@ def _post_build_check_floating_point(example_name, elf_file):
             )
         )
 
-
+# Specify the example project that should not be checked for floating point because they will always fail
 POST_BUILD_CHECK_FLOATS_EXCLUDED_EXAMPLES = [
-    "mbed-os-example-lorawan",
-    "nanostack-border-router",
+    "mbed-os-example-lorawan", # The LoRaWAN is not actively worked on and we are consideing dropping LoRaWAN example from Mbed OS examples.
+    "nanostack-border-router", # nanostack-border-router example depends on ST changes to stm-spirit1-rf-driver library.
 ]
 POST_BUILD_CHECK_FLOATS = "FLOATS"
 SUPPORTED_POST_BUILD_CHECKS = {