Internals: Add AstNodeStmt.h (#6295)

Move AstNodeStmt and all its subtypes into AstNodeStmt.h.

This is the first step for #6280.

No functional change

src/CMakeLists.txt

@@ -48,6 +48,7 @@ set(HEADERS
     V3AstNodeDType.h
     V3AstNodeExpr.h
     V3AstNodeOther.h
+    V3AstNodeStmt.h
     V3AstUserAllocator.h
     V3Begin.h
     V3Branch.h
@@ -372,8 +373,8 @@ add_custom_command(
     COMMAND ${PYTHON3}
     ARGS
         ${ASTGEN} -I "${srcdir}" --astdef V3AstNodeDType.h --astdef
-        V3AstNodeExpr.h --astdef V3AstNodeOther.h --dfgdef V3DfgVertices.h
-        --classes
+        V3AstNodeExpr.h --astdef V3AstNodeOther.h --astdef V3AstNodeStmt.h
+        --dfgdef V3DfgVertices.h --classes
 )
 list(
     APPEND
@@ -485,8 +486,8 @@ foreach(astgen_name ${ASTGENERATED_NAMES})
         COMMAND ${PYTHON3}
         ARGS
             ${ASTGEN} -I "${srcdir}" --astdef V3AstNodeDType.h --astdef
-            V3AstNodeExpr.h --astdef V3AstNodeOther.h --dfgdef V3DfgVertices.h
-            ${astgen_name}.cpp
+            V3AstNodeExpr.h --astdef V3AstNodeOther.h --astdef V3AstNodeStmt.h
+            --dfgdef V3DfgVertices.h ${astgen_name}.cpp
     )
     list(APPEND GENERATED_FILES ${astgen_name}__gen.cpp)
 endforeach()

src/Makefile_obj.in

@@ -331,6 +331,7 @@ NON_STANDALONE_HEADERS = \
   V3AstNodeDType.h \
   V3AstNodeExpr.h \
   V3AstNodeOther.h \
+  V3AstNodeStmt.h \
   V3DfgVertices.h \
   V3ThreadPool.h \
   V3WidthRemove.h \
@@ -339,6 +340,7 @@ AST_DEFS := \
   V3AstNodeDType.h \
   V3AstNodeExpr.h \
   V3AstNodeOther.h \
+  V3AstNodeStmt.h \
 
 DFG_DEFS := \
   V3DfgVertices.h

src/V3Ast.h

@@ -3153,6 +3153,7 @@ AstNode* VNVisitor::iterateSubtreeReturnEdits(AstNode* nodep) {
 #include "V3AstNodeDType.h"
 #include "V3AstNodeExpr.h"
 #include "V3AstNodeOther.h"
+#include "V3AstNodeStmt.h"
 
 // Inline function definitions need to go last
 #include "V3AstInlines.h"