Support dynamic content updates in SwiftUI #414

Job	Run time
test (26.0.1, 26.0.1, iPhone 16 Pro, NO, macos-15)	3m 52s
test (18.5, 16.4, iPhone 16 Pro, NO, macos-15)	1m 43s
build (5, 16.4, macos-15)	42s
build (5.10, 15.4, macos-14)	39s
swiftpm (16.4, iphoneos, arm64)	32s
test (17.5, 15.4, iPhone 15 Pro, NO, macos-14)	1m 12s
example (Stocks)	59s
swiftpm (15.4, iphoneos, arm64)	19s
swiftpm (16.4, iphonesimulator, arm64)	24s
example (SamplesSwiftUI)	1m 19s
example (Samples)	1m 0s
swiftpm (16.4, iphonesimulator, x86_64)	22s
swiftpm (15.4, iphonesimulator, x86_64)	18s
example (SamplesObjC)	55s
example (Maps-SwiftUI)	1m 14s
cocoapods	1m 16s
swiftpm (15.4, iphonesimulator, arm64)	19s
example (Maps)	1m 8s
	18m 13s

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