[manual] Sync c-core 1.56.2 and bump VERSION (#199)

* bump VERSION to 1.56.0

* [manual] Sync c-core 1.56.2

* bump VERSION to 1.56.2

VERSION

@@ -1 +1 @@
-1.56.0
+1.56.2

native/BUILD

@@ -215,7 +215,7 @@ g_stands_for = "galvanized"  # @unused
 
 core_version = "33.0.0"  # @unused
 
-version = "1.56.0"  # @unused
+version = "1.56.2"  # @unused
 
 GPR_PUBLIC_HDRS = [
     "include/grpc/support/alloc.h",
@@ -3699,23 +3699,47 @@ grpc_cc_library(
         "//src/core:ext/transport/chttp2/transport/hpack_parser_table.h",
     ],
     external_deps = [
+        "absl/functional:function_ref",
         "absl/status",
         "absl/strings",
-        "absl/strings:str_format",
     ],
     deps = [
         "gpr",
         "gpr_platform",
         "grpc_base",
         "grpc_trace",
+        "hpack_parse_result",
         "http_trace",
-        "//src/core:error",
         "//src/core:hpack_constants",
         "//src/core:no_destruct",
         "//src/core:slice",
     ],
 )
 
+grpc_cc_library(
+    name = "hpack_parse_result",
+    srcs = [
+        "//src/core:ext/transport/chttp2/transport/hpack_parse_result.cc",
+    ],
+    hdrs = [
+        "//src/core:ext/transport/chttp2/transport/hpack_parse_result.h",
+    ],
+    external_deps = [
+        "absl/status",
+        "absl/strings",
+        "absl/strings:str_format",
+        "absl/types:optional",
+    ],
+    deps = [
+        "gpr",
+        "grpc_base",
+        "//src/core:error",
+        "//src/core:hpack_constants",
+        "//src/core:slice",
+        "//src/core:status_helper",
+    ],
+)
+
 grpc_cc_library(
     name = "hpack_parser",
     srcs = [
@@ -3728,7 +3752,6 @@ grpc_cc_library(
         "absl/base:core_headers",
         "absl/status",
         "absl/strings",
-        "absl/strings:str_format",
         "absl/types:optional",
         "absl/types:span",
         "absl/types:variant",
@@ -3740,16 +3763,17 @@ grpc_cc_library(
         "grpc_base",
         "grpc_public_hdrs",
         "grpc_trace",
+        "hpack_parse_result",
         "hpack_parser_table",
         "stats",
         "//src/core:decode_huff",
         "//src/core:error",
         "//src/core:hpack_constants",
+        "//src/core:match",
         "//src/core:random_early_detection",
         "//src/core:slice",
         "//src/core:slice_refcount",
         "//src/core:stats_data",
-        "//src/core:status_helper",
     ],
 )