Fix warnings about unhandled enum value in switch [-Wswitch]

Fixes GCC 5 warnings of the form:

core/io/http_client.cpp:288:9: warning: enumeration value 'STATUS_SSL_HANDSHAKE_ERROR' not handled in switch [-Wswitch]
core/io/marshalls.cpp:806:9: warning: enumeration value 'AABB' not handled in switch [-Wswitch]

Those can be trivial cases where adding a default fallback is the solution,
or more complex issues/hidden bugs where missed values are actually meant
to be handled.

5 files changed, 33 insertions, 1 deletions

diff --git a/scene/gui/file_dialog.cpp b/scene/gui/file_dialog.cpp
index 283d66d8de..1e9f4df4a3 100644
--- a/scene/gui/file_dialog.cpp
+++ b/scene/gui/file_dialog.cpp
@@ -330,6 +330,10 @@ void FileDialog::deselect_items() {
 			case MODE_OPEN_DIR:
 				get_ok()->set_text(RTR("Select Current Folder"));
 				break;
+			case MODE_OPEN_ANY:
+			case MODE_SAVE_FILE:
+				// FIXME: Implement, or refactor to avoid duplication with set_mode
+				break;
 		}
 	}
 }
diff --git a/scene/gui/texture_button.cpp b/scene/gui/texture_button.cpp
index 6bd3b26280..a6a57b010f 100644
--- a/scene/gui/texture_button.cpp
+++ b/scene/gui/texture_button.cpp
@@ -88,6 +88,9 @@ bool TextureButton::has_point(const Point2 &p_point) const {
 					scale.y = min;
 					ofs -= _texture_region.position / min;
 				} break;
+				default: {
+					// FIXME: Why a switch if we only handle one enum value?
+				}
 			}
 
 			// offset and scale the new point position to adjust it to the bitmask size
diff --git a/scene/gui/texture_progress.cpp b/scene/gui/texture_progress.cpp
index 8188d1dcf8..d28b4065fb 100644
--- a/scene/gui/texture_progress.cpp
+++ b/scene/gui/texture_progress.cpp
@@ -229,6 +229,17 @@ void TextureProgress::draw_nine_patch_stretched(const Ref<Texture> &p_texture, F
 				first_section_size = topleft.y;
 				last_section_size = bottomright.y;
 			} break;
+			case FILL_BILINEAR_LEFT_AND_RIGHT: {
+				// TODO: Implement
+			} break;
+			case FILL_BILINEAR_TOP_AND_BOTTOM: {
+				// TODO: Implement
+			} break;
+			case FILL_CLOCKWISE:
+			case FILL_CLOCKWISE_AND_COUNTER_CLOCKWISE:
+			case FILL_COUNTER_CLOCKWISE: {
+				// Those modes are circular, not relevant for nine patch
+			} break;
 		}
 
 		double width_filled = width_total * p_ratio;
@@ -263,6 +274,17 @@ void TextureProgress::draw_nine_patch_stretched(const Ref<Texture> &p_texture, F
 				dst_rect.size.y = width_filled;
 				topleft.y = last_section_size;
 			} break;
+			case FILL_BILINEAR_LEFT_AND_RIGHT: {
+				// TODO: Implement
+			} break;
+			case FILL_BILINEAR_TOP_AND_BOTTOM: {
+				// TODO: Implement
+			} break;
+			case FILL_CLOCKWISE:
+			case FILL_CLOCKWISE_AND_COUNTER_CLOCKWISE:
+			case FILL_COUNTER_CLOCKWISE: {
+				// Those modes are circular, not relevant for nine patch
+			} break;
 		}
 	}
 
diff --git a/scene/gui/tree.h b/scene/gui/tree.h
index 551600109e..34138acb85 100644
--- a/scene/gui/tree.h
+++ b/scene/gui/tree.h
@@ -53,7 +53,6 @@ public:
 		CELL_MODE_STRING, ///< just a string
 		CELL_MODE_CHECK, ///< string + check
 		CELL_MODE_RANGE, ///< Contains a range
-		CELL_MODE_RANGE_EXPRESSION, ///< Contains a range
 		CELL_MODE_ICON, ///< Contains an icon, not editable
 		CELL_MODE_CUSTOM, ///< Contains a custom value, show a string, and an edit button
 	};
diff --git a/scene/gui/video_player.cpp b/scene/gui/video_player.cpp
index 17ab234551..39e7c73390 100644
--- a/scene/gui/video_player.cpp
+++ b/scene/gui/video_player.cpp
@@ -102,6 +102,10 @@ void VideoPlayer::_mix_audio() {
 			}
 
 		} break;
+		case AudioServer::SPEAKER_SURROUND_31: {
+
+			// FIXME: Implement
+		} break;
 		case AudioServer::SPEAKER_SURROUND_51: {
 
 			AudioFrame *targets[2] = {