fix(compiler): handle undefined annotation metadata (#23349)
fix(compiler): handle undefined annotation metadata (#23349)

In certain cases seen in production, simplify() can returned
undefined when simplifying decorator metadata. This has proven tricky
to reproduce in an isolated test, but the fix is simple and low-risk:
don't attempt to spread an undefined set of annotations in the first
place.

PR Close #23349

blesh/angular,petebacondarwin/angular,gdi2290/angular,sarunint/angular,alexeagle/angular,NathanWalker/angular,angular-indonesia/angular,mgechev/angular,sarunint/angular,mgiambalvo/angular,angular/angular,mgechev/angular,hansl/angular,sarunint/angular,sarunint/angular,wKoza/angular,brandonroberts/angular,ocombe/angular,angular-indonesia/angular,shairez/angular,IgorMinar/angular,blesh/angular,IdeaBlade/angular,juristr/angular,petebacondarwin/angular,jonrimmer/angular,LucasSloan/angular,matsko/angular,trshafer/angular,snaptech/angular,StephenFluin/angular,mhevery/angular,alxhub/angular,jasonaden/angular,IdeaBlade/angular,mgiambalvo/angular,vicb/angular,ocombe/angular,mgiambalvo/angular,ValtoFrameworks/Angular-2,mzgol/angular,kegluneq/angular,ocombe/angular,gdi2290/angular,shairez/angular,kara/angular,heathkit/angular,mzgol/angular,IdeaBlade/angular,mprobst/angular,snaptech/angular,kara/angular,kegluneq/angular,mgol/angular,gdi2290/angular,wKoza/angular,mzgol/angular,vikerman/angular,StephenFluin/angular,vikerman/angular,vicb/angular,brandonroberts/angular,JiaLiPassion/angular,juristr/angular,wKoza/angular,mlaval/angular,heathkit/angular,mgechev/angular,IgorMinar/angular,mzgol/angular,Toxicable/angular,mgechev/angular,mlaval/angular,mzgol/angular,filipesilva/angular,mhevery/angular,petebacondarwin/angular,IdeaBlade/angular,StephenFluin/angular,mgiambalvo/angular,ultrasonicsoft/angular,mhevery/angular,Toxicable/angular,ocombe/angular,Brocco/angular,alexeagle/angular,jasonaden/angular,Toxicable/angular,ultrasonicsoft/angular,blesh/angular,mgol/angular,vikerman/angular,snaptech/angular,trshafer/angular,alexeagle/angular,blesh/angular,manekinekko/angular,NathanWalker/angular,juristr/angular,Brocco/angular,ultrasonicsoft/angular,gnomeontherun/angular,snaptech/angular,ValtoFrameworks/Angular-2,mgiambalvo/angular,juristr/angular,hansl/angular,StephenFluin/angular,mhevery/angular,StephenFluin/angular,ValtoFrameworks/Angular-2,shairez/angular,kegluneq/angular,matsko/angular,kegluneq/angular,IgorMinar/angular,manekinekko/angular,mgechev/angular,Toxicable/angular,alxhub/angular,JiaLiPassion/angular,kara/angular,gnomeontherun/angular,gdi2290/angular,ocombe/angular,matsko/angular,gkalpak/angular,IgorMinar/angular,ocombe/angular,trshafer/angular,JiaLiPassion/angular,jasonaden/angular,vikerman/angular,mzgol/angular,trshafer/angular,snaptech/angular,kegluneq/angular,petebacondarwin/angular,brandonroberts/angular,Brocco/angular,hansl/angular,IdeaBlade/angular,Brocco/angular,jonrimmer/angular,mprobst/angular,wKoza/angular,ultrasonicsoft/angular,jasonaden/angular,ultrasonicsoft/angular,manekinekko/angular,vikerman/angular,mlaval/angular,juristr/angular,LucasSloan/angular,ValtoFrameworks/Angular-2,hansl/angular,juristr/angular,kegluneq/angular,brandonroberts/angular,jasonaden/angular,gdi2290/angular,ValtoFrameworks/Angular-2,Toxicable/angular,angular/angular,Brocco/angular,mgol/angular,alexeagle/angular,alxhub/angular,angular-indonesia/angular,shairez/angular,snaptech/angular,angular/angular,mprobst/angular,filipesilva/angular,LucasSloan/angular,Brocco/angular,mhevery/angular,brandonroberts/angular,kara/angular,mlaval/angular,kara/angular,kara/angular,NathanWalker/angular,alexeagle/angular,heathkit/angular,alxhub/angular,vicb/angular,manekinekko/angular,LucasSloan/angular,LucasSloan/angular,manekinekko/angular,NathanWalker/angular,IgorMinar/angular,trshafer/angular,sarunint/angular,gkalpak/angular,hansl/angular,Toxicable/angular,mlaval/angular,matsko/angular,jasonaden/angular,mprobst/angular,petebacondarwin/angular,mgol/angular,matsko/angular,jonrimmer/angular,NathanWalker/angular,jonrimmer/angular,vicb/angular,mgol/angular,mprobst/angular,NathanWalker/angular,vikerman/angular,heathkit/angular,blesh/angular,vicb/angular,hansl/angular,jonrimmer/angular,gdi2290/angular,sarunint/angular,LucasSloan/angular,jonrimmer/angular,angular/angular,trshafer/angular,mprobst/angular,gnomeontherun/angular,mgol/angular,shairez/angular,petebacondarwin/angular,gkalpak/angular,IgorMinar/angular,filipesilva/angular,wKoza/angular,alexeagle/angular,JiaLiPassion/angular,manekinekko/angular,angular-indonesia/angular,ultrasonicsoft/angular,heathkit/angular,vicb/angular,filipesilva/angular,wKoza/angular,gkalpak/angular,filipesilva/angular,gnomeontherun/angular,mhevery/angular,heathkit/angular,alxhub/angular,brandonroberts/angular