Apply more of Eric's suggested changes.

# Rust tests and lints will be skipped. Delete if not intended.
[ci skip-rust]

# Building wheels and fs_util will be skipped. Delete if not intended.
[ci skip-build-wheels]

src/python/pants/backend/python/dependency_inference/module_mapper.py

@@ -59,8 +59,8 @@ def address_for_module(self, module: str) -> Optional[Address]:
 
 @rule
 async def map_first_party_modules_to_addresses() -> FirstPartyModuleToAddressMapping:
-    all_explicit_targets = await Get(Targets, AddressSpecs([DescendantAddresses("")]))
-    candidate_targets = tuple(tgt for tgt in all_explicit_targets if tgt.has_field(PythonSources))
+    all_expanded_targets = await Get(Targets, AddressSpecs([DescendantAddresses("")]))
+    candidate_targets = tuple(tgt for tgt in all_expanded_targets if tgt.has_field(PythonSources))
     stripped_sources_per_explicit_target = await MultiGet(
         Get(StrippedSourceFiles, SourceFilesRequest([tgt[PythonSources]]))
         for tgt in candidate_targets

src/python/pants/core/register.py

@@ -7,7 +7,7 @@
 """
 
 from pants.core.goals import binary, fmt, lint, repl, run, test, typecheck
-from pants.core.target_types import Files, Resources, TargetAlias
+from pants.core.target_types import Files, GenericTarget, Resources
 from pants.core.util_rules import (
     archive,
     determine_source_files,
@@ -43,4 +43,4 @@ def rules():
 
 
 def target_types():
-    return [Files, TargetAlias, Resources]
+    return [Files, GenericTarget, Resources]

src/python/pants/core/target_types.py

@@ -52,10 +52,11 @@ class Resources(Target):
 # -----------------------------------------------------------------------------------------------
 
 
-class TargetAlias(Target):
+class GenericTarget(Target):
     """A generic target with no specific target type.
 
-    This is useful for aggregate targets: https://www.pantsbuild.org/target_aggregate.html.
+    This can be used as a generic "bag of dependencies", i.e. you can group several different
+    targets into one single target so that your other targets only need to depend on one thing.
     """
 
     alias = "target"